Debt Instrument, Covenant, Period To Furnish Audited Financial Statements After Qualified IPO

No definition available.

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Period Type:	duration

- Definition

Line of Credit Facility, Accordion Feature, Increase Limit

+ References

No definition available.

+ Details

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Namespace Prefix:	nrds_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=nrds_SecuredOvernightFinancingRateWith1MonthInterestPeriodsMember
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- Details

Name:	us-gaap_VariableRateAxis=nrds_SecuredOvernightFinancingRateWith3MonthInterestPeriodsMember
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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=nrds_CreditAgreementAlternativeBaseRateLoansMember
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- Details

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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=nrds_CreditAgreementEurodollarLoanMember
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Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
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- Details

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Debt - Lines of Credit Narrative (Details) - USD ($)		12 Months Ended
Debt - Lines of Credit Narrative (Details) - USD ($)	Jul. 07, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Proceeds from line of credit		$ 70,000,000.0	$ 0	$ 5,000,000.0
Revolving Credit Facility \| Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 100,000,000	100,000,000
Unused capacity commitment fee percentage		0.30%
Line of credit amount outstanding		$ 0	0
Remaining borrowing capacity		$ 98,300,000	94,700,000
Debt covenant, period to furnish audited financial statements after qualified IPO		90 days
Revolving Credit Facility \| Credit Agreement \| Line of Credit \| Secured Overnight Financing Rate With 1-month Interest Periods
Line of Credit Facility [Line Items]
Interest rate percentage		0.10%
Revolving Credit Facility \| Credit Agreement \| Line of Credit \| Secured Overnight Financing Rate With 3-month Interest Periods
Line of Credit Facility [Line Items]
Interest rate percentage		0.15%
Revolving Credit Facility \| Credit Agreement \| Line of Credit \| Secured Overnight Financing Rate With 6-month Interest Periods
Line of Credit Facility [Line Items]
Interest rate percentage		0.25%
Revolving Credit Facility \| Credit Agreement \| Line of Credit \| Secured Overnight Financing Rate SOFR
Line of Credit Facility [Line Items]
Interest rate percentage		1.00%
Revolving Credit Facility \| Credit Agreement \| Line of Credit \| Margin Percentage \| Maximum
Line of Credit Facility [Line Items]
Basis spread on variable interest rate		3.00%
Revolving Credit Facility \| Credit Agreement \| Line of Credit \| Margin Percentage \| Minimum
Line of Credit Facility [Line Items]
Basis spread on variable interest rate		2.75%
Revolving Credit Facility \| Credit Agreement, Alternative Base Rate Loans \| Line of Credit \| Margin Percentage \| Maximum
Line of Credit Facility [Line Items]
Basis spread on variable interest rate		2.00%
Revolving Credit Facility \| Credit Agreement, Alternative Base Rate Loans \| Line of Credit \| Margin Percentage \| Minimum
Line of Credit Facility [Line Items]
Basis spread on variable interest rate		1.75%
Revolving Credit Facility \| Credit Agreement, Alternative Base Rate Loans \| Line of Credit \| Fed Funds Effective Rate Overnight Index Swap Rate
Line of Credit Facility [Line Items]
Basis spread on variable interest rate		0.50%
Revolving Credit Facility \| Credit Agreement, Alternative Base Rate Loans \| Line of Credit \| Prime Rate
Line of Credit Facility [Line Items]
Basis spread on variable interest rate		3.25%
Revolving Credit Facility \| Credit Agreement, Eurodollar Loan \| Line of Credit
Line of Credit Facility [Line Items]
Proceeds from line of credit	$ 70,000,000
Letter of Credit \| Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 10,000,000
Line of credit facility, accordion feature, increase limit		25,000,000
Letter of Credit \| Credit Agreement \| Line of Credit \| Silicon Valley Bank
Line of Credit Facility [Line Items]
Line of credit amount outstanding		1,700,000	$ 5,300,000
Bridge Loan \| Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 10,000,000